3-V to 65-V input, 100-mA, step-down power module in 2.8 x 3.7 mm package 10-uSiP -40 to 125
Texas Instruments
Texas Instruments - PTPSM265R1SILR
$3.73
Texas Instruments - TPSM265R1V3SILR
$3.20
Texas Instruments - TPSM265R1V5SILR
